Protect your bases by slaying dinosaurs in large prehistoric maps. Upgrade your weapons and abilities to get the upper-hand and cooperate with friends while you take down Dinosaur bosses. With many different multi-player modes and bots for pratice... Orino Prelude isn't your typical First Person Shooter.

Conclusion:
Orion Prelude ran perfectly after I installed Dotnet. Normally UDK or Unreal Engine games have a Dot Net Framework distributable bundled with the installer, but not all of the games use it. Orion Prelude definitely uses it and won't launch without it. After connecting to an online game, if you experience some frame lag, try lowing some of the settings like anisotropy or antialising.

Comments

Normally, I avoid Windows-only games and only get ones available for Linux/SteamOS, just to add some commercial interest in the right direction. But this one's going for less than a Pound at the moment, so...

Thanks it worked for me. But can you let me know which dotnet file you installed also it doesn't work under windows 7. the only dotnet works for me is 40. it switches to win xp tho if i swtich it back to windows 7 it wont load the store. Can you confirm this

OK Thank you are awesome booman. no worrys. That's the one i finally installed, and for some reason it switches back to windows xp doesn't stay on windows 7 but still plays which is werid. I'm on Arch Linux not sure if this is why. check your settings back in what windows you have see if it switched for you also

Yes, this happens to me as well. Some games will run in Windows XP as long as you installed them in Windows 7. Strange, but it works.
You can actually fool some games like Assassin's Creed III to play in Windows XP because Uplay will not run properly. But Assassin's Creed III still plays even when set as Windows XP